Oil burner



Feb. 19 1924.

1.. s. CHADWICK OIL BURNER Filed April 29. 1920 Patented Feb. 19, 1924.

LEE s. GHADWICK, or CLEVELAND, omo, ass enoaro TI-IE CLEVELAND Marni PRODUCTS COMPANY, OF CLEVELAND, OHIO,.A CURPORATION OF OHIO.

OIL BURNER 3 Application filed April 29, 1920. Serial No. 377,467.

To all whom it may concern. 1

Be it known that 1, LEE S. CHAnwIcK, a citizen or" the United States, residing at Cleveland, in the county of Cuyahoga and:- State of Ohio, have invented a certain new and useful Improvementin Oil Burners, of which thefollowing is a full, clear, and exact description, reference being had to the accompanying drawings. 7

This invention relates to an improved indicator and wick stop for use with oil burners. v i

In oil burners of the class wherewith In improvements are adapted for use, the wicks have a normal range of movement between what may be termed high position-the highest at which the wick should be turned in the normal use of the burner-and what may be termed out positionthe position to which the wick may be turned to extinguish the flame. Between these are the usual medium and low positions. However, there is an abnormally high position to which the wick'may be turned to facilitate lighting.

It is the primary object of my invention to provide means serving ordinarily to restrict the wick to its normal range of movement, but which may be readily manipulatedto render it inefi'ective as a limiting means, permitting the wick to be elevated beyond high position to allow of easy lighting.

A further object is to combine with such means, an indicator for designating the various positlons of the wick; and further objects are to provide an improved construction of an adjustable connection between the wick operating spindle and the indicatorand stop, whereby the relation between the wick, and the indicator and stop may be readily altered to compensate for wick con sumption, such connection being simple in construction and economical of manutacture, yet highly etiic1ent,strong and durable and convenient of adjustment.

An embodiment of my improvements is illustrated in the accompanying drawing and while the same constitutes my present preferred construction, it should be regarded as an example only for it may be changed and modified in many respects without departing from the spirit or exceedingthe scope of my invention.

In the drawings, Fig. 1 is a side elevation of an 011 u ner equipped with my improved indicator and stop, parts of-the burner be: ing broken away to reveal the wick and certainstructural details; Fig. .2 is a sectional view on the line 22 of Fig. 1; Fig;

3 is a section at right anglesito Fig. 2, on the correspondinglynumbered line of said figure; Fig. 4 1s a sectional development on the .line 4-4: of Fig.2, and Fig.5 shows, the elements of the latch, through which the spindle and indicator are adju-stably 0on nected,-in perspective and: in separated con-j dition.

The typeof burner wherein I h'ave elected to show my improvements incorporated is comprised'of inner and outer WICk tUbBS 1 and 2, respectively, that are connected to gether at their lower ends 2 with a liquid-x tight joint so as to enclose between the tubes.

an annular wick space wherein. a wick 3, supported within a carrier 4, is adapted to be raised and lowered by means of a spindle 5 having star wheels or pinions 6'that mesh With perforations '7of the carrier 4:. The

spindle 5 projects forwardly andupwardly' from the burner through a tubular casing S and has connected to'its outer end beyond said casing a hand wheel 9. The burner derives its supply of oil from a pipe 10 whereon the burner ismounted and where with it has communicating connection through a fitting 11,*indicated in dotted lines:

in Fig. 1. All of this is in accordance with long established practice and further dc is thereforescription and illustration deemed unnecessary.

A hat-shaped dial, designated generally by 15, is secured to the tubular casing near its outer end and it comprises a rim portion 16, havlng its outer edge curled over tothe rear, and a crown portion 17, the central part of which is depressed in a frusto-conical shape to provide a cavity 18, the connection between the dial and the casing 8 being made at the-c-enter of this frusto-conical portion. j 1

A yoke-20, having apertured. front and rear branches 21 and 22, respectively, with an abruptly bent ,portion between the branches which produces arestricted niche 23, is journaled on the outer end of the tubular casing 8 and the rear branch 22 occupies the cavity 18; 25 is a-latch con structed of sheet metal. and comprising a central web 26 and side flanges 27. The web 26 is notched upwardly from its lower to v latch and it is provided with a lug 29 that is engaged through a slot 5O in the web 26.

or" the latch. A spring 85 is compressed between the washer and the rear branch or? the yoke and serves not only to retain the lug 29 of washer 28 within the slot'ir), but also to rock the latch forwardly onthe fulcrum provided by the confinement of its lower end within the niche 23 and projectthe teeth 36 that are formed on the forward edges of the flanges 27 into locking engagement with teeth 37 that are formed atthe rear edge of the peripheral flange of hand -wheel 9. The flanges 27 are enlarged near their outer ends to provide finger holds 38, and a tongueis thrust out from the web 26 and bent backwardly and then outwardly to form an index pointer 39 which is iuvery close proximity to the rim portion 16 or the dial when the teeth 36 of the latch are in terengaged with those of the hand wheel.

Engagement of the index pointer 39 with the rim portion 16 of the dial prevents withdrawal of the teeth 36 of the latch from those of the hand wheel except when the index ointer is in register with an opening 40 1n said rim portion. As will be seen by reference to Fig. 2, the rim portion of the dial hasinscribed upon itreading from left to right"High, Medium. Low and Out and associated with the latter is an arrow indicating that to extinguish the flame the index finger should be swung to the limit of its movement in a left hand di rection. Movement of the index pointer in the opposite direction beyond l1igl'iposi tion'is ordinarily blocked by a stop 42 which, in the present instance, is formed of a tongue of thin, resilient material, such as spring brass, that has one of its ends secured, as by means of a deposit oi sold-er indicated at 43 to the underneath or rear side of the rim portion 16 of the dial and is led therefrom for a distance along said rear side and thence through a slot i l to a position beyond the front of the dial, the

' strip of material departing gradually from the plane of said rim portion until it reaches a point where it is bent abruptly toward said portion and is projected through a slot 1-5 thereof beyond which it is bent laterally to prevent withdrawal of its'end through the last mentioned slot. As hereinbetore explained, it is desirable to elevate the wick beyond high position when lighting the.

burner; This maybe done by depressing the spring stop 42 and swinging the index pointer beyond said stop after which the stop may be released; and after the wick has been lighted the index pointer may be returned to its normal range of movement, the spring stop retracting under the action of the index pointer to permit passage of the latter.

I may explain that the reason for locating the opening 40 at the medium position is because the wick, when in such position, should be substantially flush with the tops of the wick tubes. As the wick is consumed and makes necessary a readjustment of the wick raising and lowering spindle 5 with respect to the indicator, the index pointer is brought intoregister with the opening 40' and the latch is pressed rear-' wardly against-the tension of spring 35 to disengage the teeth 36 from those of the.

hand wheel 9, so that the hand wheel may be rotated to bring the top of the wick flush with the tops of the wick tubes, after which the latch may be released and allowed to interlock with the hand wheel. Now, by turning the hand wheel, the wickmay be brought accurately to any of the positions indicated on the dial.

Having thus described invention, what u I claim is:

1. In a burner of the class described, the combination with the wick raising spindle, of opposed members, the first rotatable with the spindle and the second with respect whereto the. spindle is rotatable, an element. disposed between said members and rotatable on the axis of the spindle, and a device adapted to rock within said element toward and from the first member, the device hav-' ing parts for interlocking engagement with parts of the first member and a portion for engagement with the second member topreventwithdrawal of its aforesaid parts from those of the first member, the'second memher being designed to permitseparation of the aforesaid parts when the device is in a givenposition with respect to said second member.

2. In a burner of the class described, the

combination with the wick raising spindle, of opposed members, the first rotatable with the spindle and the second with respect whereto the spindle is rotatable, an element disposed between said members and rotatable on the axis of the spindle, a device adapted to rock within said element toward and from the first member, the device having parts for inter-locking engagement with parts of the first member and a portion for engagement with the second member to prevent withdrawal of its aforesaid parts from those of the first member, the second memher being designed to permit separation of the aforesaid parts when the device is in a given position with respect to said second member, and means tending to rock the device toward the first member.

3. In a burner of the class described, the combination with the wick raising spindle, of a dial with respect to which the spindle is rotatable, a hand wheel secured to the parts which engage to prevent the with-- drawal of the aforesaid part ofthe latch from the hand wheel, the dial being cut away at a given point to permit the passage of the last mentioned latch part and the withdrawal of the former latch part from cooperation with the hand wheel teeth.

4. In a burner of the class described, the combination with the wick raising spindle, of a'dial with respect to which the spindle is rotatable, a hand wheel secured to the spindle, a member having spaced branches that are rotatable upon the axis of the spindle and disposed between the dial and hand wheel, a latch that is adapted to rock within said member and having parts for interlocking engagement with parts of the hand wheel, and a spring disposed between the branch of said member that is furthest re moved from the hand wheel and the latch and serving to project the latch toward the the latch parts from those of the hand wheel,

the dial being cut away at one point to per,- mit the passage of said portion so that the aforesaid parts may be disengaged.

5. In a burner of the class described, the combination with the wick raising spindle, of a dial with respect to which the spindle is rotatable, a. hand wheel secured to the spindle and having circumferential teeth directed toward the dial, a member having spaced branches that are rotatable upon the axis of the spindle and disposed between the dial and hand wheel, a latch that is adapted to rock within said member and having parts for cooperation with the teeth of the hand wheel, and a. spring disposed between the branch of said member that is furthest removed from the handwheel and the latch and serving to project the latch toward the hand wheel, the latch having a portion arranged to engage the dial thereby to prevent the withdrawal of the aforesaid parts from the teeth of the hand wheel, the dial being cut away at one point to permit the passage of said portion so that the aforesaid parts of the latch may be disconnected from the hand wheel.

6. 1 In a burner of the class described, the

combination with the wick raising spindle, of a dial with respect to which the spindle is rotatable, a hand wheel secured to the spindle and having circumferential teeth, a yoke having spaced branches that are rotat able on the axis of the spindle and which is situated between the hand wheel and dial, the yoke having a restricted nitch between its branches, a latch having a web and side flanges, the web being notched to straddle the spindle so that the end of the latch may bear within the restricted nitch andthe side flanges of the latch may be engaged on opposite sides of one of the branches of the yoke, a washer surrounding the spindle and interlooking with the latch to hold it against withdrawal from the spindle, a coinpression spring interposed between said washer: and the other branch of the yoke, the latch having parts interengaging with the teeth of the hand wheel and a portion arranged to engage a part of the dial thereby to prevent withdrawal of the aforesaid parts from the teeth of the hand wheel, the dial having a portion cut away to permit of the passage of said portion and the withdrawal of the aforesaid parts from interengagement with the hand wheel teeth.

7 In a burner of the class described, the combination with the wick raising spindle, of a tubular casing enclosing the spindle, a hand wheel secured to the spindle beyond the end of said casing and having a series of teeth, a dial secured to the casing in spaced relation to the hand wheel, a yoke having apertured branches that are spaced apart and journaled upon the casing between the hand wheel and dial, theyoke having a restricted nitch between its branches, a latch comprising a web and right angle side flanges, the web being notched to straddle the casing so that the end of the latch may engage within the restricted nitch of the yoke, the side flanges of the latch embracing one. branch of the yoke, a retaining washer surrounding the casing and having a part interlocking with a part of the latch to hold the latch against withdrawal from the aforesaid nitch, and a spring confined between the washer and the other branch of the yoke and tending'to rock the latch toward the and arranged to engage a part of the dial to prevent withdrawal'of the teeth of the latch from the teeth of the hand wheel, the dial having an opening for the passage of said index pointer to permit disconnection of the latch and hand wheel when the latch is in a given position with respect to the dial.

8. In a burner of. the class described,

the combination with the wick raising spindle, of a tubular casing enclosing the spindle, a hand wheel secured to the spindle beyond the end of said casing and having a series of teeth, a dial secured to the casing in spaced relationjto the hand wheel, a yoke having apertured branches that are spaced apart and journaledupon the casing between the hand wheel and dial, the yoke having a a restricted nitch between 'its branches, a latch comprising a web and right angle side flanges, the web being notched to straddle the casing so that the end of the latch may engage within the restricted nitch of the yoke, the side flanges of the latch embracing one branch of the yoke, a retaining washer surrounding the casing and having a part interlocking with a part of the latch to hold the latch against withdrawal from the aforesaid nitch, a

spring confined between the washer and the other branch of the yoke and tending to rock the latch toward the hand wheel, the latch having teeth for interengagement with the teeth of the hand wheel and an index pointer projecting frointhe web of the latch plate toward the dial'and arranged to engage a part 01": the dial to preventjwithdrawal of the teeth of the latch from the teeth of the hand wheel, the dial havingan opening for the passage of said index pointer to permit disconnection of the latch from the hand wheel when the latch is in a given position with respect to the dial, and a movable stop carried by the dial and serving normally to limit the movement of the index pointer in a direction wherein the spindle is turned to elevate thewick.

In testimony whereof, hereunto afiix my signature.

LEE vS. OHADWICK. 

